package i_Inst;

import mips.Decoder;
import mips.PC;
import mips.Register;


public class Addi  {
	
	public static  void addi(int dest,int sc1,int sc2)
	{
		Register.registers[dest] = Register.registers[sc1] + sc2;
		
System.out.println("PC value now is : " +Decoder.toBinary(PC.pc));
		
		System.out.println("PC value :"+ Decoder.toBinary(PC.pc)+" sent to The instruction memory to read address..");
		
		System.out.println("Instuction memory sending Instruction[25:21] : "+Decoder.AddzerostoLeft(Decoder.toBinary(sc1)+"",5)+" to Registers @ read Register1");
		System.out.println("CONTROL sends RegDst to mux with value 0 ");
		System.out.println("CONTROL sends RegWrite with value 1 ");
		System.out.println("Instuction memory sending Instruction[15:11] : "+Decoder.AddzerostoLeft(Decoder.toBinary(dest)+"",5)+" to Registers @ write Register");
		System.out.println("Register number  read now is : " + Decoder.AddzerostoLeft(Decoder.toBinary(sc1)+"",5));
		System.out.println("Register number  (Destination) is : " + Decoder.AddzerostoLeft(Decoder.toBinary(dest)+"",5));
		
		System.out.println("Instuction memory sending Instruction[15:0] to Sign Extend...");
		System.out.println("The constant after Sign Extend: " + Decoder.AddzerostoLeft(Decoder.toBinary(sc2)+"",32));
		
		//System.out.println("Instuction memory sending Instruction[31:26] to CONTROL,Instruction[31:26] having : "+ "op code is sent");
		System.out.println("CONTROL send ALUSrc to ALU CONTROL carrying the value 01 to the mux...");
		System.out.println("The mux selects 1 as the second source...");
 
		
		System.out.println("Register 1 sends first source value : "+ Decoder.toBinary(sc1) + " Second Source value : " + Decoder.toBinary(sc2) + "  to ALU");
		System.out.println("ALU is doing the 'Addi : 001000',AluOp:110  operating now...");
		System.out.println("Result is ready :" + Decoder.toBinary(Register.registers[dest]));
		System.out.println("CONTROL send MemtoReg carrying the value 0 to the mux...");
		System.out.println("Sending to the mux...");
		System.out.println("Mux selection is 0,Alu result : "+ Decoder.toBinary(Register.registers[dest]) +" is sent now to the registers @ write data");
		System.out.println("Register : " +  Decoder.AddzerostoLeft(Decoder.toBinary(dest)+"",5) + ",have value now : " +Decoder.toBinary(Register.registers[dest]));
		
		System.out.println("PC value sent to Add");
		PC.pc +=4;
		System.out.println("pc value now is incremented by 4 and passed to the mux :"+Decoder.toBinary(PC.pc)+",selection 0 occured");
		System.out.println("Mux sent back to PC");
		System.out.println("New value of PC now is : " + Decoder.toBinary(PC.pc));
		
			                           
	}

}
